Throw shuttle type loom release



April 19, 1938. w. H. WEST THROW SHUTTLE TYPE LOOM RELEASE .Filed April 15, 1957 2 Sheets-Sheet l A iiorneys April 19, 1 938. w, E 2,114,949

THROW SHUTTLE TYPE LOOM RELEASE Filed April 15, 1931 2 Sheets-Sheet 2 A iiorneys Patented Apr. 19, 1938 PATENT oF icE 2,114,949 THROW SHUTTLE TYPE LOOM RELEASE -William H. West, Gadsden, Ala., assignor of onehalf to Carl W. Jones, Gadsden, Ala.

Application April 15,

3 Claims.

My invention relates to releases for fly shuttle type looms and the improvement of which is fully set forth in the following specification and claims.

The general object of the invention is to provide means whereby the shuttle tension means are released just before the shuttle leaves the box, such means including a roller carrying member attached to an arm on the tension shaft and a pivoted cam member having means for supporting it from a part of the frame of the loom.

In order that the principle of the invention may be readily understood, I have disclosed a single embodiment thereof in the accompanying drawings and a break down generally of its several parts.

In the drawings:--

Figure 1 is a fragmentary View partly in transverse section and partly in elevation showing the end of the loom and a rock shaft mounting with part of the invention connected to the protection rod and the other part to the loom end.

Figure 2 is a View partly in front elevation and partly in section taken on the line 22 of Figure 1 looking rearwardly.

Figure 3 is a detail view in side elevation showing the jack, its mounting and operating spring.

Figure 4 is a view in top plan partly in section showing the head of the jack in dotted lines and the head support projecting through its mountmg.

Figure 5 is a perspective view of the roller shaft mounting with a slot in it for adjustment.

In these drawings, a part of the frame of the loom is shown at I, the sword at 2 and the lay at 3. A tension or presser finger is shown at 4 which is connected with the spring actuated rock shaft 5, the binder being shown at I for applying pressure to the shuttle 8 in the box, a portion of which is shown at 9. All of these parts are of the well known type and form no part of my invention.

In carrying out my invention I attach a bracket H to an arm 6 on the shaft 5 and said bracket has an elongated slot therein for receiving the bolts III which also pass through the arm 6 so that the bracket is adjustably connected with the arm. A threaded shank I3 is threaded in ahole I2 in the outer end of the bracket and a nut I l holds the shaft in adjusted position in the bracket. The lower end of the shaft carries a forked member I5 and a roller I1 is carried by said member.

A bracket 22 is adjustably connected to a part of the frame I by a bolt passing through a slot 23 in the bracket and said bracket has a pair of depending parts between which extends an angle- 1937, Serial No. 137,113

shaped jack lever, the vertical part of which is shown at I9 and the horizontal part at 2!], the pivot 24 passing through the junction of the two parts and through the lower ends of the companion parts of the bracket. The top part of the bracket has a slot therein which communicates with the space between the depending parts and the part I9 of the jack extends through the slot and the upper end of this part I9 has the cam head I8 thereon. A spring 2| engages a part of the bracket and the outer end of the part 20 and tends to hold the jack in tilted position as shown in Figures 1 and 3.

The parts are so arranged that as the lay nears the end of its rearward movement the roller will engage the head I 8 of the jack and this will cause the shaft 5 to rock in a direction to cause the arm 4 to release the tension on the shuttle in the box so that the shuttle can easily leave the box. On the forward motion of the lay the jack will tilt against the action of its spring, when engaged by the roller, as shown in dotted lines in Figure 1 and this prevents damage to the loom parts should the shuttle fail to box for any reason.

As will be seen in the normal position of the jack the head I8 slopes upwardly and forwardly with the part I9 at a slight inclination and the forward end of the head is beveled as shown more particularly in Figure 8.

It is thought that the construction, operation, utility and advantages of this invention will now be quite apparent to those skilled in this art without a more detailed description thereof.

The present embodiment of the invention has been described in considerable detail merely for the purposes of exemplificaticn and it is to be understood that modifications of details described may be resorted to within the scope of the appended claims since in actual practice it attains the features of advantage enumerated as desirable in the statement of the invention and the above description.

I claim:-

1. In combination with the shuttle tension means of a loom includinga tension shaft, a bracket extending forwardly from the shaft, a roller carrying member depending from the bracket, a second bracket supported from the loom frame, a cam head having a shank depending therefrom, the lower end of the shank being pivotally supported in the bracket, yieldable means for holding the shank in a tilted position with the shank extending upwardly and rearwardly and with the head sloping upwardly and forwardly, 55

said head being engaged by the roller during the movement of the loom parts.

2. In combination with the shuttle tension means of a loom including a tension shaft, and an arm on the shaft, a bracket adjustably connected with the arm, a depending shaft connected with the bracket, a roller supported at the lower end of the shaft, a second bracket adjustably connected with the loom frame, a cam head having a depending shank, means for pivotally connecting the lower end of the shank in the second bracket and means including yieldable means for permitting the shank to tilt when engaged by the roller on the forward movement of the lay, the head of the shank causing upward movement of the roller carrying parts when said roller engages the head on the rearward movement of the lay.

and including an upstanding part having a cam 10 head thereon, a spring having a part engaging the horizontal portion of the bellcrank and a part of the bracket for permitting movement of the bellcrank in one direction, parts of the bracket preventing movement of the bellcrank in an opposite 15 direction when engaged by the roller.

WILLIAM H. WEST. 

